<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <script>
        // 1. 单行注释  ctrl + /
        /* 2. 多行注释  默认的快捷键 shift +  alt  + a
           2. 多行注释  vscode 中修改多行注释的快捷键：  ctrl + shift + /
        */
    </script>
</head>

<body>

</body>

</html>